Can't create/write to file '/tmp/#sql_1ef_0.MYI' (Errcode: 28) SQL=SELECT b.rules
FROM net_assets AS a
LEFT JOIN net_assets AS b ON b.lft <= a.lft AND b.rgt >= a.rgt
WHERE (a.name = 'com_content')
GROUP BY b.id, b.rules, b.lft
ORDER BY b.lft